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Q: Which of the following sentence is incorrect: O Coprecipitation may cause either positive or…
A: * Occulsion is coprecipitation in which an adsorbed compound trapped inside the pocket formed as…
Q: The results + standard deviation (number of samples) are given in the following table:
A: The two methods are: • chromatography •spectrophotometry
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A: Conversion factor: It is the factor that is used to convert one parameter to another by division or…
Q: Give two examples of random errors. Please do not give what is already given in the example. Thank…
A: A question based on tools in analytical chemistry that is to be accomplished.
Q: Francis A. Santos Which of the following is not a way of expressing data reliability: A Statistical…
A: A question based on tools in analytical chemistry that is to be accomplished.
Q: The sum of 91.20 and 92.973 should be reported with—- digit(s) after the decimal point.
A: The numbers given are 91.20 and 92.973.
Q: Explain what is meant by each of the following terms:a. errorb. uncertainty
A: Measurements invariably involve errors and uncertainties. It is impossible to perform a chemical…
Q: Which of the following sentence is correct: O Gross errors result from carelessness and the…
A: The given options describe different types of errors like gross error, random error etc., and…
Q: Repeatness is very important used to I a) Increase the error. b) Decrease the error. c) Minimize the…
A: Repeatness means to perform an experiment again and again.
Q: SEP Define a Problem Grades on tests can also be thought of as a success statistic. How would you…
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Q: Give two examples of the offset errors
A: Offset error arises due to the initial point is not calibrated to zero.
Q: In [X] versus time
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Q: gy E required for deformation can be calculated using which formula? (L = length of d
A: According to the question, IN A CRYSTAL, ENERGY 'E' REQUIRED FOR DEFORMATION CAN BE CALCULATED USING…
Q: Suggest a hypothesis that explains the pattern/shape for the trend of the data in my graph
A: A question based on tools in analytical chemistry that is to be accomplished.
Q: A student performed the same experiment as you. The following data was recorded in their lab…
A: Ideal gases are those gases which follow ideal gas equation. The relation between pressure, volume,…
Q: Finding mass /volume/Tempeture with data collection
A: It is given that: Weight of empty 400 mL beaker = 143.018 g Weight of 30 mL beaker and test tube =…
Q: What kind of systematic errors are detected by varying the sample size?
A: The kind of systematic errors are detected by varying the sample size has to be given,
Q: 4. 17 dm – cm 5. 299 W → TW
A: Consider the given conversion is as follows; 17 dm → cm 299 W → TW
Q: What is pre-exponential factor?
A: Chemical kinetics, also known as reaction kinetics, is a branch of physical chemistry that studies…
Q: Determinate errors are often small True False O
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Q: Distinguish between data and results.
A: When an experiment or research is being performed, the data and the experimental results are…
Q: What is the meaning of a confidence interval?
A: In chemistry there are many ways to check the deviation of experimental data from the accurate…
Q: Define and compare accuracy and precision.
A: The degree to which the given value is correct and is free from error is termed as accuracy.
Q: "Precision" is the ___________ of a measurement a. probability b. repeatability c. variability…
A: Precision:The closeness of two or more calculated measurements regardless of the accuracy of those…
Q: Which statement is associated with random error?
A: Measured value is the value of a measurement obtained through an instrument or a device. The…
Q: My System Suitability Tests can contribute to PQ True False
A: The recorded collection of activities required to verify that an instrument consistently operates…
Q: Human error can contribute to a false end point. O True O False
A: Yes Human error can contribute the false end point. Given Statement is true. Example Because If…
Q: ing statements is true of the detection limit of an instrument?
A: The first question is based on antiquity, so instead of solving it, solve the second question with…
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Q: How do you determine standard deviation?
A: The measurement of the amount of dispersion of the set of values of an observation is known as…
Q: The following set of data is given 2; 4; 5; 3; 6; 2; 3 Determine the value of coefficient of…
A: Variance is the average of squared difference from mean. Mean of the given data = =…
Q: In a particular trial, a student got a value for R of 0.085. Calculate the percent deviation of this…
A: Percent deviation is given by: % deviation=Rexperimental-RacceptedRaccepted×100 ......…
Q: Do expect to get similar data from visual and VS/Avis data collection? Explain
A: A question based on UV and visible spectrum that is to be accomplished.
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A: As you have posted multiple questions in a single request, we will solve the first question for you.…
Q: What is an extensive property that can be calculated=
A: 10. There are two broad types of thermodynamic properties :- Extensive properties Intensive…
Q: A system will be error free if we remove all systematic error. A True B False
A: Given question is : A system will be error free if we remove all systematic error. Whether the…
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A: Dear student I have given answer to your question in the image format.
Q: 5. 4.00 cm2 = m %3D x G-" 400cm? 1? m 4-4 = -4 YE 100cm² 2. 6. 16.0 years microseconds 7. 13.5 X…
A: Since you have posted a question with sub-parts , we are entitled to answer the first three…
Q: Which information does the pre-exponential factor contain?
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Q: (a) Define the following terms: (i) Determinate errors (ii) Indeterminate errors (iii) Name and…
A: Random error ( indeterminate error) It is caused by uncontrollable variables, which cannot be…
Q: 48400 mL – 138.1 mL = 3400.mg + 25.5g + 35.467g = in correct sig figs.
A: 48400 ml - 138.1 ml = ? 3400 mg + 25.5 g + 35.467 g = ?
Q: at Error d)
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Q: An error due to some peculiarity or bias of the observer (A Instrument Error (B) Personal Error C)…
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Q: Complete the following operations by filling in the exponent for the result: (*)(-*)--O %3D = k y…
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- Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the formula KHC8H4O4. This is often written in the short-hand notation as KHP. If 25.0mL of a potassium hydroxide solution are needed to neutralize 2.26g of KHP, what is the molarity of the potassium hydroxide solution? Potassium hydrogen phthalate sometimes called potassium biphthalate, as shown on this bottle is an acid that is convenient to store and use because it is a solid.For a titration to be effective, the reaction must be rapid and the yield of the reaction must essentially be 100%. Kc1,1, or 1 for a titration reaction?Complete the following: 1. Random error, also called _________arises from the effects of uncontrolled variables in the measurement. 2. The ____________,measures how closely the data are clustered about mean. 3. The chemical equilibrium in which all the reactants and products are in the same phase are called____________. 4. Reaction that go to completion and never proceed in the reverse direction are said to be_____________ 5. The equation for buffer is the__________equation. 6. A ___________solution is one that resists changes in pH when small quantities of an acid or an alkali added to it. 7. __________is the pH of the pure, neutral and polyprotic
- Solid silver nitrite is slowly added to 125 mL of a sodium cyanide solution until the concentration of silver ion is 0.0523 M. The maximum amount of cyanide remaining in solution is M. Please post the answer asap please make sure the answer doesnot contain error becasue last answer provided had error so i need to resubmit the question. Thanks!V. Error Analysis/Questions For the following questions explain what specific error in calculating your Ksp value would occur (i.e. would the Ksp be too HIGH or too LOW), compared to the situation in which no errors occur. When you answer the question, consider how the situation affects the calculation of Ksp. Each answer must have an explanation and type the answer, please. A. The buret was not conditioned (it still had water in it) when you add the HCl. Would the Ksp be too HIGH or too LOW? B. There was Ca(OH)2 solid (that was not filtered off) in your solution to be titrated. Would the Ksp be too HIGH or too LOW? C. You measured 24.00 mL of Ca(OH)2 solution instead of 25.00 mL. Would the Ksp be too HIGH or too LOW? D. The HCl concentration was actually lower than the reported molarity on the bottle. Would the Ksp be too HIGH or too LOW?what is the balance equation wirh physical sates of butanoic acid and potassium butanoate as buffer solution.
- A 4.0520g sample of HCl, specific Gravity 11.18, required 44.15ml of 0.9035M of Sodium Hydroxide in titration, compute for percent purity. Please explain thoroughly. Final answer in percent.If you had used 40mL of wash water to was .8555g of AgCl precipitate, and yhe wash water became 60% maximum saturation, how many grams of AgCl would you be washing away? Ksp for AgCl=1.8x10^-10 what % error too low would be in ur final answer, ie what % of the solid would be washed awayA 6.00-mL portion of an 8.00 M stock solution is to bediluted to 0.400 M. What will be the final volume afterdilution?
- ou let your partner do a trial since you're nice. He/she adds a few mL of NaOH, but you realize that nobody recorded the initial buret level! RATS! What do you do? a) Just get light pink since that's the point of titrations anyways. b) Finish the titration and record the final buret reading. Ask your instructor what the initial buret reading was since he knows all of them by heart...right? c) Just record the current level as the "initial" reading. Precision isn't THAT important. d) Restart the trial since you have no idea how much NaOH was added so far.Professor Acetico Acido has assigned the analysis of unknown organic compound samples to Al Coholbased on their solubility behavior. The summary of the solubility profile are tabulated below along with thepossible structures of the samples. Identify each unknown sample by matching the respective solubility profilewith the given structures. Briefly explain the reason for your answer.Sources of Error Determine the relationship between the observed/apparent value (EX) VERSUS that of the true value (ET) for the quantity being sought by writing either <, >, or = on the space provided. TOPIC: Measured mass of the precipitate 1. Overignition which causes the conversion of BaSO4 precipitate to BaO. EX _____ ET2. Precipitate was not washed thoroughly. Ex _____ ET TOPIC: Standardization of Titrant 3.Distilled water was not equilibrated to room temperature before the preparation of NaOH titrant. EX _______ ET